maint: update copyright

[gnulib.git] / m4 / vasprintf.m4

diff --git a/m4/vasprintf.m4 b/m4/vasprintf.m4
index d38c8ed..c76c99c 100644 (file)
--- a/m4/vasprintf.m4
+++ b/m4/vasprintf.m4
@@ -1,5 +1,6 @@
-# vasprintf.m4 serial 4
-dnl Copyright (C) 2002-2003, 2006-2007 Free Software Foundation, Inc.
+# vasprintf.m4 serial 6
+dnl Copyright (C) 2002-2003, 2006-2007, 2009-2014 Free Software Foundation,
+dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -27,11 +28,11 @@ AC_DEFUN([gl_REPLACE_VASPRINTF],
   gl_PREREQ_ASPRINTF
 ])
 
-# Prerequisites of lib/vasprintf.h.
+# Prerequisites of the vasprintf portion of lib/stdio.h.
 AC_DEFUN([gl_PREREQ_VASPRINTF_H],
 [
   dnl Persuade glibc <stdio.h> to declare asprintf() and vasprintf().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 ])
 
 # Prerequisites of lib/vasprintf.c.